The exterior surface of a cylinder with a circumference of 2 feet and a length of 5 feet (and no end caps) is the same as the area of

Imagine rolling out the lateral surface of a cylinder into a rectangle. This rectangle would have the a length equal to that of the cylinder's and a width of the circumfrence. Both have the same area, it's just that one is wrapped around circular bases.

Ans: A rectangle 5 feet long and 2 feet wide